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WCM
033114
LINE SET PIPING DIAGRAMS
These are two options for running the line
set from the coil to the condensing unit.
Option 1 is specifically for when the system
is installed with the condensing unit below
or leveled to the coil. Option 2 is for when
the system is installed with the
condensing unit at a higher
elevation than the coil.
Option 1
Option 2
LEGEND
LLS
Liquid Line Solenoid
TXV
Thermal Expansion Valve
COMP
Compressor
REC
Receiver
EVAP.
Evaporator
O.D.
Outer Diameter
It is required to size the suction line tubing according to this chart.
Model
Line Set Length
<25 ft.
26-50 ft.
50-100 ft.
Vertical Rise
<3 ft. 3-10 ft. >10 ft. <3 ft.
3-10 ft.
>10 ft. <3 ft. 3-10 ft. >10 ft.
Ceiling Mount
4000
Horizontal Tubing
1/2”
5/8”
Vertical Rise
3/8”
5/8”
5/8”
1/2”
Ceiling Mount
8000
Horizontal Tubing
1/2”
5/8”
Vertical Rise
1/2”